aboutsummaryrefslogtreecommitdiff
path: root/src/armv8/a64.rs
diff options
context:
space:
mode:
authoriximeow <me@iximeow.net>2024-03-17 02:44:57 +0000
committeriximeow <me@iximeow.net>2024-03-17 02:44:57 +0000
commita91c1c50a39ff68a7e73cef70829e8a5b08b4b6b (patch)
tree6fa88baec038e8cb43d4f349d627a12df51df1db /src/armv8/a64.rs
parent79d220ce177833f7dd80e15e1094bbfbf4c6f8b1 (diff)
be more explicit about undefined system instructions being invalid
Diffstat (limited to 'src/armv8/a64.rs')
-rw-r--r--src/armv8/a64.rs6
1 files changed, 6 insertions, 0 deletions
diff --git a/src/armv8/a64.rs b/src/armv8/a64.rs
index 19440ba..a228027 100644
--- a/src/armv8/a64.rs
+++ b/src/armv8/a64.rs
@@ -10454,7 +10454,12 @@ impl Decoder<ARMv8> for InstDecoder {
];
}
0b100 => {
+ // quote C5.1.2:
+ // All encodings with L==1 and op0==0b0x are UNDEFINED, except
+ // for encodings in the area reserved for IMPLEMENTATION
+ // DEFINED use
inst.opcode = Opcode::Invalid;
+ return Err(DecodeError::InvalidOpcode);
}
0b101 => {
let Rt = word & 0b11111;
@@ -10484,6 +10489,7 @@ impl Decoder<ARMv8> for InstDecoder {
}
_ => {
inst.opcode = Opcode::Invalid;
+ return Err(DecodeError::InvalidOpcode);
}
}
}